As Functional Manager for the Department of Defense (DoD), DSS provides security education, training, certification, and professional development for DoD and for other U.S. Government personnel, contractor employees, and representatives of foreign governments.
Vertigo is the most common type of dizziness. The most common diseases that result in vertigo are benign paroxysmal positional vertigo (BPPV), MÃ©niÃ¨re's disease, and labyrinthitis. Less common causes include stroke, brain tumors, brain injury, multiple sclerosis, and migraines.
Types of Vertigo. Vertigo is a symptom, typically caused by an inner ear problem, that is characterized by lightheadedness, dizziness, nausea and feeling off-balance. There are two main types of vertigo and can occur for a number of different reasons but is rarely permanent.